fixed plot vectors (#4570)

Co-authored-by: maxcapodi78 <Shark78>

Author: maxcapodi78

pyaedt/generic/general_methods.py

@@ -253,7 +253,7 @@ def deprecate_kwargs(func_name, kwargs, aliases):
                 msg += "{} is deprecated, use {} instead.".format(alias, new)
                 raise TypeError(msg)
             pyaedt_logger.warning(
-                '`{}` is deprecated as an argument to `{}`; use" f" `{}` instead.'.format(alias, func_name, new)
+                "Argument `{}` is deprecated for method `{}`; use `{}` instead.".format(alias, func_name, new)
             )
             kwargs[new] = kwargs.pop(alias)
 

pyaedt/generic/plot.py

@@ -1327,7 +1327,24 @@ def _read_mesh_files(self, read_frames=False):
                 if ".case" in field.path:
                     reader = pv.get_reader(os.path.abspath(field.path)).read()
                     field._cached_polydata = reader[reader.keys()[0]].extract_surface()
-                    field.scalar_name = field._cached_polydata.point_data.active_scalars_name
+
+                    if (
+                        hasattr(field._cached_polydata.point_data, "active_vectors")
+                        and field._cached_polydata.point_data.active_vectors_name
+                    ):
+                        field.scalar_name = field._cached_polydata.point_data.active_scalars_name
+                        vector_scale = (max(field._cached_polydata.bounds) - min(field._cached_polydata.bounds)) / (
+                            10
+                            * (
+                                np.vstack(field._cached_polydata.active_vectors).max()
+                                - np.vstack(field._cached_polydata.active_vectors).min()
+                            )
+                        )
+                        field._cached_polydata["vectors"] = field._cached_polydata.active_vectors * vector_scale
+
+                        field.is_vector = True
+                    else:
+                        field.scalar_name = field._cached_polydata.point_data.active_scalars_name
 
                 elif ".aedtplt" in field.path:
                     vertices, faces, scalars, log1 = _parse_aedtplt(field.path)